mark 0.3.0

Fixes

• fact.haven_labelled() now returns an object with class fact #39; performance enhancements
• set_names0(NULL) no longer causes an error and returns NULL #40
• diff_time() correctly handles time zones when x is Date and y is POSIXt #41

Changes

• updates file path finding functions (e.g., list_files()) to try to not search every file depending on desired searches (e.g., by full file paths or just base names)
• as_ordered() handles factors better; S3 methods removed: as_ordered.ordered(), as_ordered.factor()
• remove_na() has better performance when x has no NA values
• counts.data.frame() and props.data.frame() retain attributes of selected columns
• todos() and fixmes() will not search for .R or .Rmd files if the path is not changed from "" and no .Rproj is found within the directory

New features

• adds unlist0() to retain original names of lists
• adds %names% for a fun way to set names
• adds file_open() as alias for open_file()
• adds detail() to return a data.frame of details for a vector of columns of a data.frame
• adds squash_vec() to combined the names of a vector with repeated values
• adds make_sf() as a simple wrapper for package specific system.file()
• add_file_timestampe() gains a new parameter sep to separate the file name (sans ext) and the time stamp
• assign_labels.data.frame() gains new argument .ls to explicitly set a list (or data.frame) of columns
• props() and family gain argument na.rm to not count NA values for proportions